What do you think my plan should be?

I am going to start high school in the fall, and I know that it is early to worry about these things, what do you think my plan for high school should be? I am going to attend a public high school, however, my DREAM university is Yale. I am in love with everything about it, from its academics to its architecture. Do you think it would be possible to get in from a public high school? I will be taking Algebra II honors in 9th, so by tenth I will be able to take Calculus BC. I am also going to take all of the honors and AP classes that I can, and trust me, I hold high expectations for myself regarding grades. What do you think should be my "game plan"? Thank you so much for your answers :D